Black Diamond Magnetron RockLock

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The Black Diamond Magnetron RockLock marks a major step forward in both the simplicity and the security of the standard caribiner. Magnetic attraction keeps its gate latched; a pinch of two levers releases it. It's easy to operate one- handed – important when clinging to a cliff – and won't accidentally pop open if one lever is pressed by rope or rockfall. [$25; blackdiamondequipment.com]